An Luath-Chailceach
Ceann de na foranna éagsúla d'amscála geolaíoch is ea an Luath-Chailceach nó an Tréimhse Luathchailceach (ainm geochroineolaíoch). Cuimsíonn sé an sealad is luaithe nó is ísle de rannán an Chailcigh. De ghnáth, áirítear é mar an tréimhse idir 146 meigibhliain (Mb) go 100 Mb. Tá sé roinnte ina sé thréimhse nó aois: Albach, Aipteach, Bairéimeach, Ótraíveach, Valangaineach, agus Beiriasach.
| RÉ |
Tréimhse |
Sealad |
Aois |
Milliún bliain | |
|---|---|---|---|---|---|
| rowspan="24" style="background:Teimpléad:Period color" | an Méiseasóch | rowspan="12" colspan="2" style="background:Teimpléad:Period color" | An Cailceach | rowspan="6" style="background:Teimpléad:Period color" | Uachtarach / Déanach | style="background:Teimpléad:Period color" | Maastrichtiense | rowspan="bottom" style="background:Teimpléad:Period color" | 10px72,1±0,2 | |
| style="background:Teimpléad:Period color" | Campánach | valign="bottom" style="background:Teimpléad:Period color" | 83,6±0,2 | ||||
| style="background:Teimpléad:Period color" | Santónach | valign="bottom" style="background:Teimpléad:Period color" | 86,3±0,5 | ||||
| style="background:Teimpléad:Period color" | Coniaciense | valign="bottom" style="background:Teimpléad:Period color" | 89,8±0,3 | ||||
| style="background:Teimpléad:Period color" | Turónach | valign="bottom" style="background:Teimpléad:Period color" | 10px93,9 | ||||
| style="background:Teimpléad:Period color" | Cenomaniach | valign="bottom" style="background:Teimpléad:Period color" | 10px100,5 | ||||
| rowspan="6" style="background:Teimpléad:Period color" | Inferior / Temprano | style="background:Teimpléad:Period color" | Albach | valign="bottom" style="background:Teimpléad:Period color" | ~113,0 | |||
| style="background:Teimpléad:Period color" | Aipteach | valign="bottom" style="background:Teimpléad:Period color" | ~125,0 | ||||
| style="background:Teimpléad:Period color" | Bairéimeach | valign="bottom" style="background:Teimpléad:Period color" | ~129,4 | ||||
| style="background:Teimpléad:Period color" | Hauteriviense | valign="bottom" style="background:Teimpléad:Period color" | ~132,9 | ||||
| style="background:Teimpléad:Period color" | Valangaineach | valign="bottom" style="background:Teimpléad:Period color" | ~139,8 | ||||
| style="background:Teimpléad:Period color" | Bairéimeach | valign="bottom" style="background:Teimpléad:Period color" | ~145,0 | ||||
| colspan="1" style="background:Teimpléad:Period color" | Iúrasach | valign="bottom" style="background:Teimpléad:Period color"| 201,3±0,2 | ||||
| colspan="1" style="background:Teimpléad:Period color" | Teimpléad:Tc | valign="bottom" style="background:Teimpléad:Period color" | 252,17±0,06 | ||||
| Era Eratema |
Periodo Sistema |
Época Serie |
Edad Piso |
Inicio, en millones de años | |
|---|---|---|---|---|---|
| rowspan="24" style="background:Teimpléad:Period color" | Mesozoico | rowspan="12" colspan="2" style="background:Teimpléad:Period color" | Cretácico | rowspan="6" style="background:Teimpléad:Period color" | Superior / Tardío | style="background:Teimpléad:Period color" | Maastrichtiense | rowspan="bottom" style="background:Teimpléad:Period color" | 10px72,1±0,2 | |
| style="background:Teimpléad:Period color" | Campaniense | valign="bottom" style="background:Teimpléad:Period color" | 83,6±0,2 | ||||
| style="background:Teimpléad:Period color" | Santoniense | valign="bottom" style="background:Teimpléad:Period color" | 86,3±0,5 | ||||
| style="background:Teimpléad:Period color" | Coniaciense | valign="bottom" style="background:Teimpléad:Period color" | 89,8±0,3 | ||||
| style="background:Teimpléad:Period color" | Turoniense | valign="bottom" style="background:Teimpléad:Period color" | 10px93,9 | ||||
| style="background:Teimpléad:Period color" | Cenomaniense | valign="bottom" style="background:Teimpléad:Period color" | 10px100,5 | ||||
| rowspan="6" style="background:Teimpléad:Period color" | Inferior / Temprano | style="background:Teimpléad:Period color" | Albiense | valign="bottom" style="background:Teimpléad:Period color" | ~113,0 | |||
| style="background:Teimpléad:Period color" | Aptiense | valign="bottom" style="background:Teimpléad:Period color" | ~125,0 | ||||
| style="background:Teimpléad:Period color" | Barremiense | valign="bottom" style="background:Teimpléad:Period color" | ~129,4 | ||||
| style="background:Teimpléad:Period color" | Hauteriviense | valign="bottom" style="background:Teimpléad:Period color" | ~132,9 | ||||
| style="background:Teimpléad:Period color" | Valanginiense | valign="bottom" style="background:Teimpléad:Period color" | ~139,8 | ||||
| style="background:Teimpléad:Period color" | Berriasiense | valign="bottom" style="background:Teimpléad:Period color" | ~145,0 | ||||
| colspan="1" style="background:Teimpléad:Period color" | Jurásico | valign="bottom" style="background:Teimpléad:Period color"| 201,3±0,2 | ||||
| colspan="1" style="background:Teimpléad:Period color" | Teimpléad:Tc | valign="bottom" style="background:Teimpléad:Period color" | 252,17±0,06 | ||||